9. What is the difference between antacids and antihistamines?
Answers
Answer:
Ans: Antacids directly remove the excess acid in the stomach whereas antihistamine lowers acid content in the stomach indirectly by preventing the interaction of histamine with receptors of the stomach wall.
Answer:
An antacid is a substance which neutralizes stomach acidity, which in turn relieves heartburn, indigestion or stomach upset.e.g Histamine.
FUNCTIONS OF ANTACIDS - DEFINITION
Antacids may be used:
To reduce the symptoms of acid reflux which may cause heartburn or inflammation of the gullet. These conditions are sometimes called gastro-oesophageal reflux disease (GORD).
To relieve some of the symptoms caused by ulcers in the stomach and part of the gut.
In other conditions where it is helpful to neutralise stomach acid.
Before the discovery of other more modern medicines, antacids were commonly used for the above conditions. They were also used to help heal ulcers in the stomach and duodenum.
ANTIHISTAMINES - DEFINITION
The drugs which interfere with the natural action of histamine by competing with histamine for binding the sites of receptor where histamine exerts its effect are called antihistamines. e.g., Seldane, Dimetane.
FUNCTIONS OF ANTIHISTAMINES - DEFINITION
Antihistamines function to block the release of a chemical called histamine, which is one of your body's natural defences. When your body recognises a foreign substance, also called an allergen, it reacts defensively through a sequence of reactions leading to the release of various chemicals, one of which is histamine. These constitute your body's allergic response to the allergen. Itching is one of the responses to the allergen and it can range from mild to extremely uncomfortable and painful.
Antihistamines work to:
Alleviate red and irritated eyes
Reduce a runny nose and sneezing
Ease itching in the throat, nose or eyes
Explanation:
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